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Nondegenerate truncated indefinite Stieltjes moment problem in the class $\mathbf{N}_{\kappa}^{k}$ of generalized Stieltjes functions is considered. To describe the set of solutions of this problem we apply the Schur step-by-step algorythm,…

Classical Analysis and ODEs · Mathematics 2016-06-13 Vladimir Derkach , Ivan Kovalyov

This paper gives via Stieltjes transform a complete description of the solution set of a matricial truncated Stieltjes-type power moment problem in the non-degenerate and degenerate cases. The approach is based on the Schur type algorithm…

Complex Variables · Mathematics 2017-07-20 Bernd Fritzsche , Bernd Kirstein , Torsten Schröder , Conrad Mädler

The multidimensional moment problem is studied in terms of the Steiltjes transform. The diagonal step-by-step algorithm is constructed for the multidimensional moment problem. The set of solutions of the full multidimensional moment problem…

Functional Analysis · Mathematics 2025-01-13 Ivan Kovalyov

The main goal of this paper is to achieve a simultaneous treatment of the even and odd truncated matricial Stieltjes moment problems in the most general case. These results are generalizations of results of Chen and Hu [5,17] which…

Complex Variables · Mathematics 2016-04-27 Bernd Fritzsche , Bernd Kirstein , Conrad Mädler

The characterization of the solvability of matrix versions of truncated Stieltjes-type moment problems led to the class of $\alpha$-Stieltjes non-negative definite sequences of complex $q \times q$ matrices. In [21], a parametrization of…

Complex Variables · Mathematics 2016-04-26 Bernd Fritzsche , Bernd Kirstein , Conrad Mädler

In this paper we study the strong matrix Stieltjes moment problem. We obtain necessary and sufficient conditions for its solvability. An analytic description of all solutions of the moment problem is derived. Necessary and sufficient…

Functional Analysis · Mathematics 2011-06-13 A. E. Choque Rivero , S. M. Zagorodnyuk

We study a truncated two-dimensional moment problem in terms of the Stieltjes transform. The set of the solutions is described by the Schur step-by-step algorithm, which is based on the continued fraction expansion of the solution. In…

Functional Analysis · Mathematics 2024-04-05 Ivan Kovalyov , Stefan Kunis

The truncated multidimensional moment problem is studied in terms of the Stieltjes transform as the interpolation problem. A step-by-step algorithm is constructed for the multidimensional moment problem and the set of solutions is found in…

Functional Analysis · Mathematics 2025-01-13 Ivan Kovalyov

We consider a normalized indeterminate Hamburger moment sequence s which is supposed to be Stieltjes. We revisit old results about determinacy/indeterminacy in the sense of Stieltjes for s and we prove some new results about the concepts…

Functional Analysis · Mathematics 2025-12-23 Christian Berg

We give (necessary and sufficient) conditions over a sequence $\left\{ f_{n}\right\} _{n=0}^{\infty}$ of functions under which every generalized Stieltjes moment problem \[ \int_{0}^{\infty} f_{n}(x)\phi(x)\mathrm{d} x=a_{n}, \ \ \…

Functional Analysis · Mathematics 2017-08-24 Ricardo Estrada , Jasson Vindas

The Stieltjes moment problem is studied in the framework of general Gelfand-Shilov spaces defined via weight sequences. We characterize the injectivity and surjectivity of the Stieltjes moment mapping, sending a function to its sequence of…

Functional Analysis · Mathematics 2019-02-05 Andreas Debrouwere , Javier Jiménez-Garrido , Javier Sanz

The determination of a finite Blaschke product from its critical points is a well-known problem with interrelations to other topics. Though existence and uniqueness of solutions are established for long, we present several new aspects which…

Complex Variables · Mathematics 2017-09-04 Gunter Semmler , Elias Wegert

We consider the random continued fraction S(t) := 1/(s_1 + t/(s_2 + t/(s_3 + >...))) where the s_n are independent random variables with the same gamma distribution. For every realisation of the sequence, S(t) defines a Stieltjes function.…

Mathematical Physics · Physics 2009-11-13 Jens Marklof , Yves Tourigny , Lech Wolowski

Truncated moment problems in the class of generalized Nevanlinna functions are investigated. General solvability criteria will be established, covering both the even and odd problems, including complete parametrizations of solutions. The…

Functional Analysis · Mathematics 2011-01-04 Vladimir Derkach , Seppo Hassi , Henk de Snoo

The Stieltjes moment problem is studied in a new framework within the general Gelfand-Shilov spaces defined via weight sequences. The novelty consists of allowing for a naturally larger target space for the moment mapping, which sends a…

Functional Analysis · Mathematics 2025-11-11 Javier Jiménez-Garrido , Ignacio Miguel-Cantero , Javier Sanz , Gerhard Schindl

We prove a solvability theorem for the Stieltjes moment problem on $R^d$ which is based on the multivariate Stieltjes condition $\sum_{n=1}^\infty L(x_j^n)^{-1/(2n)}=+\infty$, $j=1,\dots,d.$ This result is applied to derive a new…

Functional Analysis · Mathematics 2020-11-10 Konrad Schmüdgen

This work is devoted to the obtaining of a new numerical scheme based in quadrature formulas for the Lebesgue-Stieltjes integral for the approximation of Stieltjes ordinary differential equations. This novel method allows us to numerically…

Numerical Analysis · Mathematics 2020-02-20 Francisco J. Fernández , F. Adrián F. Tojo

This work is devoted to the mathematical analysis of Stieltjes Bochner spaces and their applications to the resolution of a parabolic equation with Stieltjes time derivative. This novel formulation allows us to study parabolic equations…

Analysis of PDEs · Mathematics 2020-05-15 Francisco J. Fernández , F. Adrián F. Tojo

By using Schur transformed sequences and Dyukarev-Stieltjes parameters we obtain a new representation of the resolvent matrix corresponding to the truncated matricial Stieltjes moment problem. Explicit relations between orthogonal matrix…

Complex Variables · Mathematics 2016-09-16 Abdon Eddy Choque-Rivero , Conrad Mädler

We describe all solutions of the matrix Stieltjes moment problem in the general case (no conditions besides solvability are assumed). We use Krein's formula for the generalized $\Pi$-resolvents of positive Hermitian operators in the form of…

Functional Analysis · Mathematics 2010-02-25 Sergey M. Zagorodnyuk
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